minning.de - Stefan Minning: CG Artist and Developer

This lens shader is designed to be phys­i­cally accu­rate and mim­ics a DSLR camera’s expo­sure set­tings. For simplicity’s sake I mod­eled the set­tings after the pop­u­lar and beginner-​​friendly Nikon D40.

Phys­i­cal­Cam­era bases its expo­sure cal­cu­la­tions on these real-​​world cam­era units:

• Film speed (ISO)
• Shut­ter speed
• Aper­ture (f-​​stop)
• White bal­ance

The shader offers use­ful pre­sets for each indi­vid­ual set­ting and also com­bined pre­sets for var­i­ous light­ing sit­u­a­tions such as sun­light, over­cast skies, tung­sten etc. as you might know them from your DSLR cam­era.
Any­one famil­iar with pho­to­graphic cam­eras will find Phys­i­cal­Cam­era intu­itive to use.

More­over, Phys­i­cal­Cam­era fea­tures basic color cor­rec­tion set­tings and sim­u­lates var­i­ous pho­to­graphic effects includ­ing vignetting, chro­matic aber­ra­tion and film grain for added realism.

Usage

This shader can be used as a basic tone map­ping oper­a­tor and to prop­erly expose an image as you would with a real DSLR camera.

Phys­i­cal­Cam­era is designed for best results when used in com­bi­na­tion with Phys­i­cal­Light and Phys­i­cal­Ma­te­r­ial.